Table 3
Initial abundances of the principal species used in the models are shown in the second and third columns.
| Species | nX /nH | nX /nH | Elemental | δX |
|---|---|---|---|---|
| ini1 | ini2 | species | ||
| H2 | 4.99(−1) | 4.99(−1) | H | 1.00 |
| He | 9.00(−2) | 9.00(−2) | He | 9.00(−2) |
| s-H2 | 1.24(−4) | 1.24(−4) | O | 2.56(−4) |
| s-H2O | 9.87(−5) | 2.46(−4) | N | 7.60(−5) |
| s-CO | 9.19(−5) | 9.58(−6) | C+ | 1.20(−4) |
| s-OH | 1.91(−5) | 7.24(−14) | S+ | 1.50(−5) |
| s-HNO | 2.89(−5) | 3.12(−7) | Si+ | 1.70(−6) |
| s-N2 | 1.33(−5) | 6.14(−12) | Fe+ | 2.00(−7) |
| s-O | 1.16(−5) | 2.74(−16) | ||
| s-HCN | 6.23(−6) | 4.17(−7) | ||
| s-CH4 | 6.20(−6) | 1.10(−4) | ||
| s-NH3 | 8.03(−6) | 7.53(−5) | ||
| s-H2CO | 3.20(−7) | 7.12(−9) | ||
| s-CH3OH | 1.29(−7) | 2.67(−17) | ||
| s-CO2 | 9.83(−8) | 5.91(−10) | ||
| s-H2S | 3.09(−8) | 7.93(−8) | ||
| s-Si | 8.00(−9) | 8.00(−9) | ||
| s-Fe | 3.00(−9) | 3.00(−9) |
Notes. The fifth column shows the elemental abundances, of the gas and ice phases and not of the refractory dust, taken from Wakelam & Herbst (2008) that are used to obtain the initial abundances shown in the first columns. The values a(b) refers to a× 10b through the paper. The grain surface species are indicated by the ’s-’ before their name.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.